OF MEETING, R. 13th International Conference on Functional Equations and Inequalities, Małe Ciche, September 13–19, 2009. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 8, p. 117–153, 2009. Disponível em: https://studmath.uken.krakow.pl/article/view/13263. Acesso em: 29 oct. 2026.